Paravirtualized Network Drivers for Windows don't work on Windows 2003r2

Paravirtualized Network Drivers for Windows don't work on Windows 2003r2 64
After installation have this problem. ("Can't load driver for this device" in properties). Driver from XP/amd64 folder of Virtio-win-0.1-49 and Virtio-win-0.1-74 iso - anyway same result.

scr.png

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